Lead Pump is a trusted supplier of premium Check Valves in China, specializing in lead-free brass spring-loaded check valves designed for potable water systems, plumbing backflow prevention, and industrial fluid control applications. Our LD-B2001A series is the flagship product, precision-engineered to provide reliable one-way flow with minimal pressure loss and long service life.
Manufactured from certified low-lead brass C46500/C46400, our check valves fully comply with NSF/ANSI 61, NSF 372, AB1953, and RoHS standards, making them safe for drinking water systems across North America and Europe.
The spring-loaded design features a stainless steel 302 spring, a precision-machined valve seat, and a durable Buna-N seal with EPDM available as an option for enhanced sealing performance.
The valve can be installed in both horizontal and vertical orientations, offering flexibility in tight piping layouts while ensuring automatic closure during reverse flow conditions.
Rated for working pressure up to 200 PSI and temperature range from -20°F to 250°F, these valves perform reliably in demanding residential, commercial, and industrial environments.
| Valve Size | Outer Diameter | Length | Weight | Connection Type |
|---|---|---|---|---|
| 3/4" | 37.5mm | 68mm | 230g | Female NPT / BSP |
| 1" | 45mm | 80mm | 343g | Female NPT / BSP |
| Up to 2" | 72mm | 128mm | 1400g | Female NPT / BSP |
